At 17:41 CST, K spotted a fireball in the sky north of Lincoln, Illinois. She alerted me and I had a few seconds to observe it too.

Texted our meteorite-loving friends; whl encouraged us to file a report at the American Meteor Society site. He has been checking other reports during our progress down the highway-- he says ericcoleman also spotted the bolide ( Read more... )

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Adding to my antimatter timeline I have extended my research a bit further, with the kind help of other scholars:


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Did you ever wonder how Jack Williamson came to write a series of science fiction stories about antimatter?

1928 Paul Dirac's relativistic treatment of quantum mechanics shows that the positron may exist.

1932 Carl Anderson discovers the positron in cloud-chamber photographs. Physicists speculate about other anti-particles (what we now call ( Read more... )